Portion of a magnetic disc storage unit for electronic computer



FIG. 1 is a front, top and right side perspective view of a portion of a magnetic disc storage unit for electronic computer according to the design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a cross-sectional view taken along line 8-8 of FIG. 2;

FIG. 9 is a cross-sectional view taken along line 9-9 of FIG. 2; and,

FIG. 10 is an enlarged view of the portion shown in BOX 10 of FIG. 1, included for clarity of illustration.

The broken lines in the drawings show portions of the portion of a magnetic disc storage unit for electronic computer that form no part of the claimed design. The long and short dash broken lines in FIG. 1 and FIG. 10 are used for defining the area in FIG. 1 that is enlarged in FIG. 10. 

CLAIM The ornamental design for a portion of a magnetic disc storage unit for electronic computer, as shown and described. 